diff --git a/garlic/exp/nbody/nblocks.nix b/garlic/exp/nbody/nblocks.nix
index ce4a025..447c4ff 100644
--- a/garlic/exp/nbody/nblocks.nix
+++ b/garlic/exp/nbody/nblocks.nix
@@ -96,7 +96,7 @@ let
       nanos6+jemalloc as well. */
       customPkgs = bsc.extend (self: super: {
         mpi = conf.mpi;
-        nanos6 = self.nanos6.override { inherit enableJemalloc; };
+        nanos6 = super.nanos6.override { inherit enableJemalloc; };
       });
     in
       customPkgs.apps.nbody.override ({